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ORIGINAL RESEARCH Table of Contents   
Year : 2009  |  Volume : 20  |  Issue : 2  |  Page : 174-179
Tensile bond strength of composite luting cements to metal alloys after various surface treatments


1 Department of Prosthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey
2 Department of Mechanical Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
3 Department of Mechanical Education, Faculty of Technical Education, Firat University, Elazig, Turkey

Correspondence Address:
Saip Denizoglu
Department of Prosthodontics, Faculty of Dentistry, Yeditepe University, Istanbul
Turkey
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9290.52896

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Aims: To evaluate the effects of two different surface treatments and bonding agents on tensile bond strength between a Co-Cr and a Ni-Cr cast alloy and two resin-luting cements. Materials and Methods: Two hundred and forty alloy samples were cast and subjected to surface treatments such as sandblasting, chemical etching, and sandblasting plus chemical etching. Panavia F and CandB cement were used as cementing mediums. The etching qualities were examined by a stereooptic microscope. Failure surfaces were examined throughout scanning electron microscopy. The data were evaluated using statistical methods, namely analysis of variance and multiple comparison test (Tukey HSD). Results: Significant differences were found in the bonding provided by the various cements (P < 0.001) and also type of surface treatments (P < 0.001). For all groups, sandblasted surfaces showed the highest bond strength values. There was no significant difference between the Cr-Co and the Cr-Ni alloys (P > 0.05). Conclusions: Panavia F showed higher tensile strength and the sandblasted samples possessed higher tensile strength.


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